Chemical Oxygen Demand Back Catalog number: 59592 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10974.6-100MG Para-phenylenediamine,neat,neat,100mg, Price on request 9230.14-100-IO Ethyltri-n-butyltin-d27 (tri-n-butyl-d27), 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Price on request BENDOS Endosulfan II (b), 1.2mL x 100ug/mL, nonane Price on request